The FISW workshops were organised with a group of collaborative partners, groups and sponsors. These are listed below and the Interstellar Research Centre thanks them for their participation.

The 2017 Foundations of Interstellar Studies workshop was organised in co-operation with City University New York (CityTech) and the US Institute for Interstellar Studies. The event was sponsored by Stellar Engines Ltd and the Breakthrough Initiatives, where the former was also the main organiser.

The 2019 Foundations of Interstellar Studies workshop was organised in co-operation with the UK Initiative for Interstellar Studies and the British Interplanetary Society. The event was sponsored by Stellar Engines Ltd, Terra Altair Ltd and Space Excess LLC. Stellar Engines and newly formed research wing, the Interstellar Research Centre, was the main organiser.